Door-hanger.



W. R, MUNDEN (in L. J. BOSWORTH.

DOOR HANGER.

APPLICATION FILED MAR. 3, 1911 Patented Oct. 31, 1911.

LOLZS WILLIAM R. MUNDEN AND L'YCUEGUS J.

io. I

BOS'WOETl-I, OF ALBERT LQEA, MINNESOTA.

' DOOR-HANGER.

Specification of Letters Patent.

latented Get. 31, 1911.

Application filed March 3-, 1911. Serial No. 612,136. i

To all whom it may concern.

Be it known that we, WILLIAM R. MUN- DEN' and LroURoUs J. Boswonrn, citizens of the United States, and residents of Albert Lea, in the county of Freeborn, State of Minnesota, have .invented certain new arid useful Improvements in Door-Hangers, of which the following is a full and clear speification, reference being had to the accompanying drawings, in which- Figure l is a side elevation showing our improvements applied to a freight car door, the door being shown open in full lines and closed in dotted lines; Fig. 2 a similar View illustrating the position of the parts when the door is half open; Fig. 3 a detail side elevation, partly in section, showing the slt'itted retaining guide at the lower endof the shitting lever; and Fig. 4 a detail vertical sectional view of the same.

.The object of this invention to provide means for so hanging an edgewise-niovable door that all tracks and rollers will be done away with and also so that the door may be shifted backwardly and forwardly not only noiselcssly but also with a minimum of of fort. as more fully hereinafter set forth.

Pivoted to the car or other structure at a point above the door a a pair of depending links 0, the pivots of those links-lying in the same horizontal plane, and the lower ends ofthcse links being pivotally connected by a horizontal. link d, the pivots of this link also lying in the same horizontal plane, whereby the link (I will always lie in a horizontal plane and the depending links 0 shall always maintain their parallelism. Another link 0 is pivotally connected to the face of the door at a point near its upper edge, above the link fl, and the lower end of said link e swings free of the. door but is pivotally connected to the lower extremity of the adjacent link 0 at the point where said link (Z is connected thereto. Another link has its lower end pivotally connected to the lower extremity of the other hangerdink a,

this link f being equal inlength to the link (2 and having its upper end pivotally connected to the face of the door in thesanie' horizontal plane with the upper pivot of the link 0, the two links a and r" being thereby caused to maintain parallelism at all times. The link f has an extension f which extends downwardly to a point below the lower edge of the door, at which point it. is

pivotally and slidingly eonnectied to the sta tionary structure of the.car or buildin w The two members f and f constitute in fact a single lever, though the upper part j cooperates with the link 6 and performs the true function of a link.

The letter 9 designates .a pin or bolt rigidly fastened in the stationary structure and provided with ahead at its outer end and with an anti-friction roller h confined between the head and the structure. The lower extremity of the lever f is slotted to engage the headed pin g, the width of the slot being such that it permits the roller h to run back and forth freely therein and at the same timeermit the head on the pin or bolt to con no the lever to the face of the structure. The slot in the lever is peculiarly shaped. It has an upper vertical branch '5 and two lowerbranchesj and j which branch ofi from the upper slot 5 and curve downwardl 'away from it, thus leavng a central dividing point P0 which lies centrally below the entrance of the vertical branch This slot therefore has substantially the shape of an inverted Y, the arms being curved downwardly and away from ea ch other.

The door may be readily shifted edge wisely in either direction by taking hold of either one of the handles Z. from a full open position to a full closed position, and vice versa, it will be seen that the lower ends of the hanger-links c and the bar (Z first move downwardly and then upwardly. This would necessarily cause the door to move in the same direction but for the fact that the pivotal connections of the will be caused to maintain a horizontal path in its movements back and forth. When the door is inid-way the length of its movement,

as shown in Fig. 2, it will be seen that the lever in an upright position, with its lower end moved far enough downwardly to bring the guide pin 1 tothe upper end of the vertical slot i, and when the door is moved in either direction from this central position the lever will be drawnupwardly and shifted laterally at its lower end to cause the headed pin to pass into one or the other of the curved slot branches j, j, wher When shifted ins by in all positions the lower end of the lever will be prarticallv looked against edge-wise movement by the walls of the slots engaging with the roller on the pin. it will be understood that the entire weight ot the door is transmitted to the hanger links through the medium of the links 0 and and the connecting pivots, so that the support for the door is in the nature of a floating suspension, thus enabling the door to be shifted in either direction without binding and with a inininiuin of wear and resistance.

it will be observed that the npn :'(ll v extending part 2' of the slot is torined simply by the junction of the two curved branches j. It will be observed also that the irravitational action of the'door and the, hanger structure when the door is in a position at either side of center tends to swing, the lower end of the lever in the oppositedireo tion and thus will keep the convex wall (it the slot pressed against the roller on the headed-pin 1 this pressure being sutticient to cause the door to normally remain in any of its adjusted positions. It will therefore be seen that the active wall of each slot is the outer, convex wall, which acts virtu ally as a cam, and that the inner wall, formed by part 71; acts simply to prevent the lever being disengaged from the headed pin.

An overhanging flange or keeper [1 or other means may be en'iployed at the top to keep out rain-water and to assist in contining the upper edge of the door to the Stl'ltt' ture and suitable stops 11' I) ma v be employed to limit the edgewise movement of the door.

Having thus fully described our invention, what we claim as new and desire to secure by Letters Patent, is-

l. In combination with a structure and an edgewise-movable door, of means for suspending the door on the structure, said means consisting: of a pair of dei'iending parallel hanger links, a pair of shorter links arranged in parallelism and pivotally -con'- necting the lower ends of said hanrer links to the door at. points above the lower ends? of said hanger links, one of said links bemg extended downwardly to a point below the door, means for maintaining cach pair 5 ol: links parallel and devices for pivotally l l l i l l ti l l l l l l l l l l l and slidingzly connecting said extension to the structure at a point below the door.

2. In con'ibination with a an edgewise mo able door, of means for susl'iending the door on the structure, said means consisting of a pair of (lGPQIitlllllI pa *allel hanger links, a pair of shorter links arranged in parallelism and pivotally conneetin g the lower ends of said hanger links to the door at points above the lower ends of said hanger links, one of said links being extended downwardly to a point: below the door, and devices for pivotally and sliding'ly connecting said extension to the structure at a point below the door, and a horizontal link pivot-ally connecting the lower ends (it the hanger links.

3. In combination with a structure edge-wise movable door. of means for suspending the door on the structure, said means consisting: of a pair of depending: parallel hanger links, a pair of shorter links arranged in parallelism and pivotally connecting the lower ends of said hanger links to'the door at points above the lower ends of said hanger links. one of said links being" extended downwardly to a point below the door. and devices for pivotallv and slid ingly connecting said extension to the structure at a point below the door, said devices consisting of a headed pin carried by the structure and an approximately Y-shaped slot in said extension.

4. in combination with a supporting structure, an edge-wise movable. door, a

swinging link structure ati'ording the sole means of suspendingthe door to said structure and ar anged to cause the movement ot the door to be approximately in a horizontal plane, a lever rigidly depending from said link structure to a point below the lower edge of the door, and means for pivotall v and slidinglv connecting the lower end ol said lever to the structure below the door.

in testimony whereof we hereunto atlix our signatures in the presence oi two witnesses this 25th da v o't' l ebrnar v lili'l.

\Vlhlddld It. lilllNDllN. LYt l R'tlllS J. BOSlVOlt'lll. ll it ncsses N. B. Tnonrsox, Norman E. lic'rnnson.

structure and I and an 

